baber/WOPTO huggingface dataset:
Patent GB-922533-A (GB)
Title: Improvements relating to thermionic valves
Inventor: BAWDEKAR VAMAN SHANTARAM
IPC: H01J9/38
Filed: 1959-04-28
Abstract: 922,533. Thermionic valves. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 14, 1960 [April 28, 1959], No. 14488/59. Class 39 (1). In a thermionic valve in which the cathode lead extends through the upper portion of the envelope a getter is located above the electrode assembly and an electrical lead extending between a position on the inner surface of the upper portion of the envelope, where the getter deposit is produced, and earth, or a point of low potential, so as to earth the getter deposit. The getter lead reduces noise due to sparkover between the cathode lead 9 and the getter deposit 10. The getter deposit 10 is preferably connected to the cathode lead 9 but may alternatively be connected to the lead of another electrode if earthed. As shown, a conductive wire or strip 11 connects the getter deposit 10 with the cathode lead 9 and conductor strip 8 and abuts against the inner surface of the tube envelope. Wire or strip 11 is preferably resilient and is welded at its mid-point to 8, 9. In assembly the electrode assembly is pushed upwards; this causes the arms of 11 to bow and lie along the inner surface of the envelope. The getter ring 6 is shielded from the electrodes by a screen 7.
Patent GB-611949-A (GB)
Title: Improvements relating to the truing of small gear-wheels
IPC: G04D7/04
Filed: 1946-05-14
Abstract: 611,949. Making toothed gearing. FERRANTI, Ltd., HUNT, W., TAYLOR, J., and WOOD, A. L. May 14, 1946, No. 14501. [Classes 83 (ii) and 83 (iv)] Spinning.-Small gear-wheels &c. are trued by rotation against members 17<SP>1</SP> 14<SP>1</SP> alternately disposed to deflect the wheel rim through successively decreasing distances from the true plane of rotation. An electric motor 13 clutched to a shaft 12 drives a worm 23 and through pulleys 7, 8 a mandrel 2 gripping the wheel disc 4 and supporting its shaft 3. A five-lobed disc cam 22 driven by the worm 23 oscillates a follower 20 on a pivoted, spring- controlled lever 19 carrying trueing members 141, 17<SP>1</SP> disposed either side of the wheel rim 4. Operation. When the clutch is engaged, the gear-wheel 4 rotates and the cam 22 forces the members 14<SP>1</SP>, 17<SP>1</SP> alternately against the wheel rim deflecting it through distances of 20, 10. 5, 2 and 1 mil. beyond the required true plane until the cycle is stopped after one cam revolution, when a clutch bar 29 engages a clutch control plate 32 and declutches the motor 13. In one modification, the trueing members 14<SP>1</SP>, 17<SP>1</SP> may be separately operated from either individual or common cams.
Patent GB-731367-A (GB)
Title: Improvements in and relating to electroluminescent lamps
IPC: H05B33/26
Filed: 1952-06-09
Abstract: 731,367. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS, Inc. June 9, 1952 [June 8, 1951], No. 14501/52. Class 39 (1). An electroluminescent lamp has two metal contact members each in contact with one of the conducting layers which enclose the lightemitting coating. A glass plate 1 carries on its surface a light transmitting electrically conducting layer 2 which contacts an L-shaped metal strip 3 extending over the adjacent edge of the plate 1. A similar L-shaped strip 4 extends over the other edge and into contact with an electrically conducting layer 6 which is separated from layer 2 by a layer 5 comprising a mixture of dielectric and electroluminescent material. A layer 7 of lacquer or plastic covers the layer 6 and the strips 3, 4. The conducting layer 2 is produced by treating the glass plate whilst hot with the vapours of the chlorides of silicon, tin or titanium and afterwards treating in a weakly reducing atmosphere. Alternatively the heated glass is dipped into a mixture of stannic chloride, absolute alcohol and glacial acetic acid. The necessary portions of the layer on the glass plate, where, for example, the strip 4 is to be affixed, are removed by reduction with zinc dust and dilute sulphuric acid; or the portions are shielded originally with wax. The metal strips 3, 4 are of silver paint which is preferably fired to the glass, with a copper coating covering it applied by plating and permitting the soldering of wire thereto. The contact strips 3, 4 need not extend the full length of the edge, and if desired they may occupy different isolated portions of the same edge. The backing coating 6 is a good reflector and conductor, e.g. aluminium applied by deposition in a vacuum jar or by spraying. The glass plate 1 and its conducting layer 2 may be replaced by a layer of transparent conducting plastic material, or a transparent plastic covered with a transparent layer of conducting material. In the former case, the layer 4 is insulated. The electroluminescent materials may be as described in Specifications 731,364 and 731,365 and are suspended in nitrocellulose, castor oil with appropriate thinners to allow it to be sprayed on to the conducting layer to a thickness of a few thousandths of an inch. The embedding dielectric may be a wax or plastic of reasonably high dielectric constant and strength and of high resistivity. The thicknesses of the coatings and strips are specified.
Patent GB-725221-A (GB)
Title: Improvements relating to lock nuts
IPC: F16B37/12
Filed: 1953-05-26
Abstract: 725,221. Locking nuts. HELI-COIL CORPORATION. May 26, 1953 [June 26, 1952], No. 14559/53. Class 89 (1). [Also in Group XXII] A lock nut comprises a barrel 10 having an external groove 22 and internal threads 14. A wire coil 15 screwed into the barrel is shaped externally to fit the threads, and internally forms a female thread for a bolt 18. After inserting the coil, the nut is compressed axially to decrease the thread angle over a zone adjacent the groove thus causing the coil to contract locally and have a reduced diameter for gripping the bolt threads. The distance from the groove to the underside 13 of the barrel may conform to that of a standard nut, and the affected part of the coil is not less than a quarter of a convolution and not appreciably more than a complete convolution thereof. It is stated that instead of compressing to form the modified zone, the barrel may be machined with the modified threads and the coil subsequently inserted.
Patent GB-1077595-A (GB)
Title: Process for obtaining pearls of expanded polystyrene
IPC: C08J9/228
Filed: 1966-04-01
Abstract: Pearls of expanded polystyrene are made from granules containing a blowing agent by steam treating the granules at atmospheric pressure to expand them, maturing the expanded granules and then steam heating under greater than atmospheric pressure.  The pearls may be subjected to a further maturing in air which is preferably slightly heated. The steam heating of the pearls under greater than atmospheric pressure may be repeated more than once, each treatment being separated by a maturing.  The process may be carried out continuously or at fixed stations.  The pearls obtained have an apparent density of less than 5 kgm./m.3 and can be agglomerated to produce plates or moulded pieces.
Patent GB-1498673-A (GB)
Title: Vessel for supporting or containing eggs during boiling and subsequent consumption
IPC: A47J29/06
Filed: 1975-04-09
Abstract: 1498673 Egg-boiling vessels; egg cups F SERENO 9 April 1975 [9 April 1974] 14588/75 Headings A4A and A4D A vessel for supporting or containing eggs during boiling or subsequent consumption has a semi-ovoid portion 1 integral with an external casing 4 having a flat open base and side surfaces, the portion 1 and the casing 4 being joined at one end but separate at the other end of each thus during boiling, allowing hot cooking liquid to enter the cavity formed between them and heat the portion 1, the outer casing keeping the semiovoid portion upright during boiling and consumption of the egg, the side surfaces of the casing being pierced with one or more vents 5 which allow air to escape when the vessel is placed in the cooking liquid. The vessel may be provided with a cover 2, partly or wholly transparent to place over the vessel during cooking and on the base of the vessel during subsequent consumption of the egg.
Patent GB-1118264-A (GB)
Title: Process for producing a rutile pigment
IPC: D21H17/69
Filed: 1966-04-01
Abstract: Rutile pigment is subjected to two after treatments, the after treatments in each case comprising treating an aqueous suspension of rutile in any order with a water soluble silicate and/or a water soluble aluminium salt and/or another water soluble metal salt and precipitating, washing, drying and grinding the pigment after each treatment.  After the two treatments the pigment is calcined at 450 to 600 DEG  C.  In the examples the pigment is dispersed in water using sodium metaphosphate and sodium hydroxide.  The silica is added as a solution of waterglass and the aluminium oxide as a solution of aluminium sulphate, and the precipitation is brought about by adding ammonia until the pH of the solution is 8.1. The concentration of the additive used may be between 0.5 and 5.0% of each additive for each after treatment.
Patent GB-239618-A (GB)
Title: Improvements in or relating to receptacles or containers of sheet material and method of making the same
IPC: B31B17/00
Filed: 1924-06-17
Abstract: 239,618. Nicholson, F. T. June 17, 1924. Apparatus for making non-metallic hollow-ware. Relates to the production of reinforced beads or other means for seating or securing in place the heads or ends of barrels or other receptacles made by winding paper or other material on a form or mandrel. As paper 36 is wound on to a mandrel 21, Figs. 4 and 5, to form the receptacle, roller heads 28, 29 are advanced so that the rollers are caused to bear upon the surface. The smoothing- rollers 33 merely hold the paper in contact with the mandrel, but the ribbing-rollers 32, 34 indent the paper into circumferential grooves or bevels formed in the mandrel. When a sufficient number of layers have been wound, reinforcing strips 18 are introduced between the windings. These strips are preferably initially flat and are moulded to shape by the ribbing-rollers; they may be of perforated metal, through the interstices of which the cement or adhesive material used to cement the layers or the paraffin or other proofing material can pass. They may also be of any width desired and may be bent or spun over the ends of the receptacle, or they may be merely wires of suitable cross-section. The winding of the paper &c. is continued until the walls are of the desired thickness. When a head or end is to be secured permanently in place, it is placed between the revoluble disc 26 and the end of the mandrel, the paper layers being wound over its edge and indented by the rollers.
Patent GB-150661-A (GB)
Title: Improvements relating to apparatus for taking or projecting moving pictures
IPC: G03B1/56
Filed: 1920-05-29
Abstract: 150,661. Petra Akt.-Ges. f³r Elektromechanik. Aug. 28, 1919, [Convention date]. Kinematograph apparatus.-The loop in a film is maintained by having the feed-sprockets loosely coupled on their shafts so that by the action of the film itself the sprockets are accelerated or retarded automatically as required. The sprockets 3, 5 are connected to the shafts 25, 16 respectively by spring pawls and ratchet-wheels so that under ordinary driving-torque the friction between the pawls and ratchet-wheels causes the sprockets to rotate in one with their shafts. In action, if the left-hand loop tends to disappear, the action of the film-gripper causes the sprocket 3 to overrun and restores the loop. If the right-hand loop tends to disappear, the film operates by the roller 40 a lever 39 which at its end 42 engages with pins 43 to retard the sprocket 5 and allows the loop to reform.
Patent GB-1259910-A (GB)
Title: A method of producing arylenephenol-formaldehyde resins and moulding material on the basis thereof
Inventor: SHORYGINA NATALIA VLADIMIROVNA
IPC: C08G14/04
Filed: 1970-03-26
Abstract: 1,259,910. Phenol/hydrocarbon/formaldehyde resins. NAUCHNO - ISSLEDOVATELSKY INSTITUT PLASTICHESKIKH MASS. 26 March, 1970, No. 14764/70. Heading C3R. Phenol/aromatic hydrocarbon/formaldehyde resins are produced by condensing a eutectic mixture of aromatic hydrocarbons with phenol and formaldehyde in the presence of an acidic catalyst. The mixture of hydrocarbons may comprise pyrene and fluoranthene or coronene or consist of a single compound of only technical grade purity such as crude anthracene. The formaldehyde may be formalin or alphapolyoxymethylene. The acidic catalyst may be ZnCl 2  or HCl. The resins may be compounded with a mineral or organic filler and a curing agent to produce moulding materials. In examples, the compounding ingredients are urotropin (hexamethylene tetramine), kaolin, nigrosine, line, stearine and wood flour.
Patent GB-456568-A (GB)
Title: Improvements relating to razor blades
IPC: B26B21/56
Filed: 1936-05-26
Abstract: 456,568. Safety-razor blades. MULLER, P., 59, Burgstrasse, Solingen, Germany. May 26, 1936, No. 14873. [Class 30] The ends of razor blades having multiple cutting edges are formed with one or more asymmetrical irregularities of outline b, b<1>, sensible to the touch, in. order that, blade edges being variously formed, a blade may be identified, even if its ends are hidden by lather. Projections may additionally have letters &c. marked on them.
Patent GB-872366-A (GB)
Title: Improvements in or relating to belt grinding machines
Inventor: PLUMMER HENRY JAMES
IPC: B24B21/00
Filed: 1959-05-01
Abstract: 872,366. Grinding or polishing. BRISTOL SIDDELEY ENGINES Ltd. May 2, 1960 [May 1, 1959], No. 14884/59. Class 60. [Also in Group XXXIV] A head for a belt grinding or polishing machine and of the kind including an abrasive belt 3 arranged to be driven round a contact wheel 2 which is positioned in use to hold the belt against a workpiece, e.g. an elongate workpiece having a curved surface such as a compressor or turbine blade, is characterised in that the contact wheel is located, at each end thereof, in a nip between a pair of partly overlapping rotatable discs 6 and is held in the nip by the tension of the belt, the discs being mounted in bearings and arranged for free rotation by the belt via the contact wheel and each being of considerably larger diameter than the engaging ends of the contact wheel. The contact wheel 2 is of sufficiently small diameter to grind or polish small radii of the order of 0À25 inches and has at each end an axially extending spindle 7 which bears in the nip between the two discs 6, 6. The latter are supported on stub shafts 9 running in anti-friction, e.g. ball bearings 10. A retaining arm 12 pivoted at 14 to a housing 13 for the discs 6 is positioned at each end of the contact wheel to support it should the belt break. The housing supporting the discs and contact wheel is interchangeable with a standard unit having a larger contact wheel.
Patent GB-545869-A (GB)
Title: A method of treating water for the purpose of removing electrolytes therefrom
IPC: C02F1/42
Filed: 1940-12-14
Abstract: 545,869. Purifying water. PERMUTIT, CO. Ltd. Dec. 14, 1940, No. 14899/41. Convention date, June 14, 1940. Divided out of 545,842. [Class 46] In a process of treating water in which the water is passed successively through cation-exchange material charged with hydrogen ions and through acid-removal material, part of the water leaving the acid-removal material is returned to mix with the raw water supplied to the cation-exchange material, so that the concentration of electrolytes in the water passing through the two materials is reduced.
Patent GB-1115403-A (GB)
Title: Adjustable razor
IPC: B26B21/32
Filed: 1966-04-04
Abstract: 1,115,403. Razors. EVERSHARP Inc. 4 April, 1966 [26 April, 1965], No. 14915/66. Heading B4B. In an adjustable razor comprising a spider assembly 12 having cap sections 13, 14 mounted for opening and closing movement to clamp a blade on a guard member 27 mounted on a handle assembly 11, the angle of exposure of the blade relative to the member 27 is adjustable in predetermined increments by means of a cam surface 41 on a sleeve 24 engageable by a cam surface 40 on a follower sleeve 25. The sleeve 24 is keyed to a portion 22 of the handle 20 and the sleeve 25 is a press-fit in a rotatable knob 26 which is secured to the spider stem 16 which is biased by a spring 31 to urge the cap sections to the open position. The cam surface 41, Fig. 8, has a shoulder 43 to limit rotation of the sleeve 25 in one direction, a rise 44 defined by notches 45 and a rise 46 which terminates in a surface 47 defined on the opposite side by a shoulder 48, the arrangement being such that when the cam surface 40 engages the surface 47, the stem 16 is urged upwardly by the spring 31 to move the cap sections to the open position. The angle of exposure of the blade is indicated by numerals on the sleeve 24 which are associated with a marker 49 (not shown) on the knob 26. The handle is provided with a platform spring 28. Alternatively, the cam sleeve and cam follower sleeve may be interchanged. Further, the guard member may be shifted, by the cam means, relative to the handle and/or the cap sections to selectively change the angle of the blade.
Patent GB-918612-A (GB)
Title: Improvements in simulated swinging pendulum clock
IPC: G04C15/00
Filed: 1960-04-28
Abstract: 918,612. Clocks. GENERAL ELECTRIC CO. April 28, 1960 [May 21, 1959], No. 14925/60. Class 139. In an electric clock a synchronous motor 14, Fig. 2, drives the hands 26, 28, 30 through a reduction gear train 20 and the same motor or a second motor drives an imitation pendulum 36 through a cam and linkage mechanism 60, 40. The pendulum is pivoted to a horizontal link 42 and its lower and and bob are visible below the clock casing 12. The link 46 has a pin 62 which engages a sinusoidal or wavy groove 64 on the face of the cam.
Patent GB-296142-A (GB)
Title: Improvements in valves for gas regulation
IPC: F23D14/48
Filed: 1927-06-07
Abstract: 296,142. Stoves, Ltd., and Charles, W. J. June 7, 1927. Atmospheric gas burners. - A gas-regulator, for atmospheric burners, comprises a body a containing a slidable member c with a perforated shoulder c<2> and a reduced extension d having one or more outlets d<2> and longitudinal tapering grooves e co-operating with the inturned end of the body. The member c is operated by a shaft f<2> carrying a crank-pin f engaging a circumferential slot c<4>. The shaft f<2> is provided with an operating button g, slotted at g<2>, and sunk, together with a spring f<4>, in an enlarged bore of the shaft housing f<3>.
Patent GB-1197832-A (GB)
Title: An Automatic Tapping Machine.
IPC: B23G1/18
Filed: 1968-03-29
Abstract: 1,197,832. Nut-tapping machines. LOOS & SCHMIDT. 29 March, 1968 [7 April, 1967]. No.15126/68. Heading B3N. An automatic nut tapping machine comprises a magazine which feeds nuts to a feed channel 15, a pair of rotatable discs 6, 7 for guiding the nuts up to a curved shank tap 3, and a camcontrolled pusher 14 for moving the nut up to the tap. Each of the discs is mounted in bearings 10, 11 and is vertically adjustable so as to vary the gap for the nut. Cam 12 for controlling pusher 14 is rotated by gearing 2 which also rotates the tap. In operation, a nut 16 passes through channel 15 on to the lower larger disc 6, and is moved on to the tap by pusher 14. During this movement the nut is guided by the discs 6, 7, which rotate so as to reduce friction.
Patent GB-924957-A (GB)
Title: An arrangement for the storage and transmission of signals
IPC: B61L25/04
Filed: 1961-04-26
Abstract: 924,957. Mechanical digital data store. SIEMENS SCHUCKERTWERKE A.G. April 26, 1961 [May 11, 1960], No. 15141/61. Addition to 888,632. Class 106 (1). The invention of the parent Specification which provides that a rotatable magnet 2 has impressed on it a significant orientation by a fixed magnet 1 past which it is moved, the orientation being sensed by the Hall voltage generated in a detector, is modified in that the fixed magnet 1 has its poles lying on a line which is not at right-angles to nor parallel with the linear direction of motion of the rotatable magnet 2. The distance separating the poles of the fixed magnet may be adjustable.
Patent GB-357559-A (GB)
Title: Process and method of manufacturing corrugated sheets
IPC: B28B1/52
Filed: 1930-05-16
Abstract: In the manufacture of corrugated asbestos cement roofing sheets the corrugations are pressed from a blank sheet, first from one side and then from the other, so that the radii of curvature of the upper faces of one end of the sheet and the radii of curvature of the lower faces of the other end are substantially similar, to produce a tight fit between overlapping sheets.
Patent GB-849537-A (GB)
Title: Improvements in and relating to machines for dispensing adhesive labels and the like
Inventor: FREELAND CHARLES ALFRED
IPC: B65C9/42
Filed: 1958-05-12
Abstract: 849,537. Label dispensers. RAWSONS (LABELLING MACHINES) Ltd. Jan. 30,1959 [May 12, 1958], No. 15164/58. Class 94(1). A label dispenser of the kind in which a web bearing the labels is drawn over a sharp lip to free the labels in part from the web, comprises a pair of independent feelers spaced in the direction of web travel, one initiating the web feed when a partially freed label is withdrawn from beneath it, and the other causing cessation of feed when it drops off the edge of a label passing under it, on to the web. The web, bearing labels 5 is fed across a table 3a, over a heater 10 and round a lip 6 to feed rollers 17, 11. The feelers comprise rollers 27, 28 mounted on arms 20, 21 pivoted intermediate their length on brackets 24, 25. The brackets are adjustable in the direction of web travel to vary the feeler spacing for various label sizes and dispositions. Springs 29, 30 bias the feelers towards the web. When a label is drawn from beneath the roller 27, its arm moves to close a micro-switch 31 and start the feed motor. When the next label has passed from beneath the roller 28, the latter drops, operating a microswitch 32 to stop the motor.
Patent GB-475662-A (GB)
Title: An improved fastening device for belts, bands and the like
IPC: A44B11/24
Filed: 1936-06-02
Abstract: 475,662. Attaching buckles to belts &c. WALKER, Ltd., T., and WALKER, G. T. June 2, 1936, No. 15293. [Class 43] [Also in Group XXV] Buckles are attached to belts, bands and the like by two plates attached to the buckle frame and to the belt end respectively, one of the plates 8 having a narrow portion 8a and a wider portion 9, the other plate 3 having a pair of lugs 12 for engagement over the enlarged part 9 of the first plate. The portion 9 of the plate 8 may be the plane of the part 8a and its end may carry a keeper loop for the belt. A lever grip may attach the belt end to the plate 3. The portion 9 of the plate 8 may be tapered so as to prevent the plate 3 from slipping over it ; also the keeper loop may form a stop. Specification 446,197 is referred to.
Patent GB-1519409-A (GB)
Title: Fuelinjection valve assembly for an internal combustion engine
IPC: F02M27/04
Filed: 1976-04-14
Abstract: 1519409 Treating IC engine charge DAIMLER-BENZ AG 14 April 1976 [22 April 1975] 15387/76 Heading F1B A fuel-injection valve assembly for an I.C. engine comprises a conical valve element 18 which is lifted from its seat 19 by fuel pressure in opposition to the force of a spring 21 to provide a conical fuel spray 9, the seat being disposed at the end of a thin-walled small-diameter tube 22 which projects from the end of a valve casing 13, and an annular electrode 25 insulated from the tube and valve casing being disposed around the valve outlet with its upstream end at a greater distance from the valve casing than from the tube, while its downstream end is located outside the spray cone. A potential of about 2À5 to 5 kV is applied to the electrode 25 to improve the fuel atomization at low flow-rates. The electrode 25, which is carried by an outer housing 12 of insulating material, may be a cylindrical structure of wire mesh or helically wound wire. The tube 22 is tapered at 31 to increase the electrostatic concentration at the outlet end of the valve.